2023 Thailand Open – Singles

Zhu Lin defeated Lesia Tsurenko in the final, 6–4, 6–4 to win the women's singles tennis title at the 2023 Thailand Open. It was her first WTA Tour singles title.

Magda Linette was the reigning champion from 2020, when the event was last held, but withdrew before the tournament.

Seeds
• #🇨🇦 Bianca Andreescu (semifinals, retired)

• #🇰🇿 Yulia Putintseva (first round)

• #🇨🇳 Wang Xiyu (first round)

• # Anna Kalinskaya (second round)

• #🇺🇦 Marta Kostyuk (quarterfinals)

• #🇩🇪 Tatjana Maria (quarterfinals)

• #🇨🇳 Wang Xinyu (semifinals)

• #🇨🇿 Linda Fruhvirtová (second round)

Seeds
• # Anastasia Zakharova (moved to main draw)

• # 🇹🇷 İpek Öz (qualifying competition)

• # Joanne Züger (qualified)

• # Alex Eala (qualified)

• # 🇷🇸 Natalija Stevanović (qualifying competition)

• # 🇦🇺 Astra Sharma (qualified)

• # Anastasia Tikhonova (first round)

• # Ekaterina Makarova (qualified)

• # Kristina Dmitruk (qualifying competition)

• # Irina Khromacheva (first round, retired)

• # Valeria Savinykh (qualified)

• # 🇱🇮 Kathinka von Deichmann (first round)

Qualifiers
• # Ekaterina Makarova

• # Liang En-shuo

• # Joanne Züger

• # Alex Eala

• # Valeria Savinykh

• # 🇦🇺 Astra Sharma